Making Use of the Direct Process Residue: Synthesis of Bifunctional Monosilanes
作者:Alexander G. Sturm、Tobias Santowski、Julia I. Schweizer、Lioba Meyer、Kenrick M. Lewis、Thorsten Felder、Norbert Auner、Max C. Holthausen
DOI:10.1002/chem.201901881
日期:2019.6.26
The industrial production of monosilanes MenSiCl4−n (n=1–3) through the Müller–Rochow Direct Process generates disilanes MenSi2Cl6−n (n=2–6) as unwanted byproducts (“Direct Process Residue”, DPR) by the thousands of tons annually, large quantities of which are usually disposed of by incineration. Herein we report a surprisingly facile and highly effective protocol for conversion of the DPR: hydrogenation
通过Müller-Rochow直接法工业生产甲硅烷Me n SiCl 4− n(n = 1–3)会生成乙硅烷Me n Si 2 Cl 6− n(n= 2–6)作为每年数千吨的有害副产品(“直接工艺残留物”,DPR),其中大量通常通过焚化处理。在本文中,我们报告了DPR转换的出奇的简便且高效的方案:用复杂的金属氢化物氢化,然后用HCl /醚溶液进行Si-Si键裂解,从而以优异的收率得到(大部分是双官能的)甲硅烷。竞争性的副反应通过反应条件的适当选择有效地抑制。
[EN] CLEAVAGE OF METHYLDISILANES TO METHYLMONOSILANES<br/>[FR] CLIVAGE DE MÉTHYLDISILANES EN MÉTHYLMONOSILANES
申请人:MOMENTIVE PERFORMANCE MAT INC
公开号:WO2019060479A1
公开(公告)日:2019-03-28
The invention relates to a process for the manufacture of methylmonosilanes comprising the step of subjecting one or more methyldisilanes to the cleavage reaction of the silicon-silicon bond, and optionally a step of separating the resulting methylmonosilanes.
[EN] PROCESS FOR THE PRODUCTION OF ORGANOHYDRIDOCHLOROSILANES<br/>[FR] PROCÉDÉ DE PRODUCTION D'ORGANOHYDRIDOCHLOROSILANES
申请人:MOMENTIVE PERFORMANCE MAT INC
公开号:WO2019060485A1
公开(公告)日:2019-03-28
The invention relates to a process for the manufacture of organomonosilanes, in particular, bearing both hydrogen and chlorine substituents at the silicon atom by subjecting a silane substrate comprising one or more organomonosilanes, with the proviso that at least one of these silanes has at least one chlorine substituent at the silicon atom, to the reaction with one or more metal hydrides selected from the group of an alkali metal hydride and an alkaline earth metal hydride in the presence of one or more compounds (C) acting as a redistribution catalyst.
[EN] PROCESS FOR THE PRODUCTION OF ORGANOHYDRIDOCHLOROSILANES FROM HYDRIDOSILANES<br/>[FR] PROCÉDÉ DE PRODUCTION D'ORGANOHYDRIDOCHLOROSILANES À PARTIR D'HYDRUROSILANES
申请人:MOMENTIVE PERFORMANCE MAT INC
公开号:WO2019060486A1
公开(公告)日:2019-03-28
The invention relates to a process for the manufacture of organomonosilanes bearing both hydrogen and chlorine substituents at the silicon atom by subjecting one or more organomonosilanes to the reaction with one or more di- or carbodisilanes in the presence of one or more compounds (C) acting as a redistribution catalyst, wherein at least one of the silanes has only hydrogen and organic residues at the silicon atoms.